Bones and mirrors tell the story of the day the dinosaurs died

John Hammond’s InGen sought to recreate the world of dinosaurs using genetic material preserved in the guts of mosquitoes trapped in amber. The science behind whether something like that works or not is great, but it makes for a good story. The Jurassic Park franchise, which is about to release its sixth installment, is gaining public attention with the age of the lost dinosaurs.

The same excitement fuels the research of archaeologists around the world to uncover the truth about dinosaurs and their environment. The asteroid impact that wiped them off the face of the planet – in some cases really – has become a kind of cultural touchstone, one of the first things children learn when they have the ability to form thoughts. Now, the aftermath of that impact is the source of intensive research on the Danish site, part of the famous Hell Creek creation.

A few years ago, the site made headlines when scientists announced their hypothesis that it reflected a limited period of time documenting the hours following the K-Pg extinction event in Siksula. Danis is back in the headlines following the release of the uniquely preserved Thecolosorus leg of an animal that may have died as a direct result of the impact. Robert Dipalma is a graduate student at the University of Manchester and leads one of the teams working on Danish.

“The most interesting thing about the site is the asteroid impact debris, these ejecta spirals that exploded from the abyss and the dust cap that falls out of the atmosphere and rests on the ground, basically a time stamp for deposits,” Dipalma told SYFY WIRE.

Those spheres are the signature of the planet’s response to impact between planets several miles in diameter. When the asteroid came in contact, it drilled into the Earth’s surface, melting and displacing sediments in its orbit. Because some of those sediments are so hard to observe, they travel through the atmosphere and come back down as newly formed glass. They litter the site and have even been found within the gills of fossil fish.

The force of the impact spread outwards, carrying water, whole trees, sediment, fish and other animals up to the Danis site in North Dakota, 3,000 kilometers from Yucatan. Now, the site is a real buffet of late Cretaceous fossils, including a severed Thessalonians leg.

“The dinosaur foot found at that place is very interesting because it is well preserved. The bones are clear, and the appearance of the skin is three-dimensional and the bone is covered. , May have died within weeks or months, or it may have died on the day of the impact, ”Dipalma said.

Considering the position of the foot at the time of protection and its contact with the dorsal site, the animal may have been swept away in the post-impact surge, during which the foot was removed from the rest of the body, deposited and covered. , Within hours of the asteroid impact.

“Although it was known to be dead days and weeks ago, it is still incredibly important because it gives information about the origin and muscle mass of this dinosaur.

We can never say for sure whether this animal died on the exact day of the impact and as a result of the resulting uprising, but it is not so important in the geographical chronology. What are some days or weeks in 66 million years? However, scientists are controlling the timeline as closely as possible by eliminating other possible causes of death.

“Our team and external researchers examined this specimen and found no major signs of predation. We did not see any obvious signs of disease, and we did not see any obvious signs of advanced degeneration.

The study of Thescolosaurus leg has not yet been published and reviewed by the larger scientific community, but when it does, if the time scale is revealed, it is the archeology equivalent of a smoking gun, which may be verifiable eyewitness account of K’s catastrophic events. -Pg destruction. The only thing better than finding a smoking gun is to retrieve the Cosmic Bullet, and the crew at Danish may have done just that.

The asteroid was destroyed when it came in contact with a significant portion of Earth’s surface, but interplanetary fragments may have been riding in spirals and raining down on the Danish base waiting for recovery.

Dipalma and his team are examining pieces of insoluble debris captured inside glass pellets in an attempt to determine their appearance. Some of them appear to be bits of ground from the affected area, while others may have a more attractive appearance.

“Most of the material erupted from the crater during the impact process. They appear to be calcium carbonate, so they may be part of the limestone platform in Yucatan. Maybe, “said Dipalma.

Finding the fossil of an animal that died on or near the date of our planet’s most famous catastrophic event is much better than finding the real part of the asteroid that caused the extinction. These are huge claims, which attract an appropriate amount of skepticism from the scientific community, and often they have not yet been published, which is usually the standard protocol for big announcements.

Carl Sagan says extraordinary claims need extraordinary evidence, and that these findings are certainly so, but we hope they stand the test of time. The best thing is that it is good to see the dinosaurs ourselves, inside the amusement park with the best security record.

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